UK Area Code information for Londonderry

Londonderry Area Code Allocation

Ofcom has allocated the 0287 area code to service Londonderry and the surrounding area on at least 3 exchanges.

Londonderry Exchange Information

Londonderry NILDM

The Londonderry exchange has 15,998 domestic properties.
Adsl Max
Fixed Rate
Fttc Range A (Clean)
Fttp On Demand
Fttc Range B (Impacted)
Wbc Fixed Rate
Wbc Adsl 2+
Wbc Adsl 2+ Annex M
Some postcodes covered by this exange include;
BT48 7AY
BT48 6BT
BT48 6BU
BT48 6BY
BT48 6TT
BT48 6AA
BT48 7AE
BT48 6AE
BT48 7AX
BT48 7AA
BT48 6AB
BT48 7BH
BT48 6AF
BT48 6AD
BT48 7AB
BT48 6BS
BT48 7BJ
BT48 6BD
BT48 6BG
BT48 6BH
BT48 6BJ
BT48 6BN
BT48 6BB
BT48 6DF
BT48 6BP
BT48 6BL
BT48 7BS
BT48 7BX
BT48 7AG
BT48 7BB
BT48 7FE
BT48 6ES
BT48 7BG
BT48 7BQ
BT48 7BU
BT48 7BZ
BT48 6LU
BT48 6HD
BT48 7BD
BT48 7BL
BT48 7PX
BT48 7FB
BT48 6DH
BT48 6HF
BT48 6EP
BT48 6HH
BT48 7EN
BT48 6EX
BT48 6EY
BT48 6EZ

Londonderry Waterside NILDW

The Londonderry Waterside exchange has 13,387 domestic properties.
Some postcodes covered by this exange include;
BT47 2NQ
BT47 2JA
BT47 2NJ
BT47 2HX
BT47 2DA
BT47 2HY
BT47 2LF
BT47 2HU
BT47 2HT
BT47 2HS
BT47 2HZ
BT47 2JB
BT47 2DG
BT47 2ND
BT47 6DA
BT47 2BZ
BT47 2DB
BT47 2HW
BT47 2DD
BT47 2HJ
BT47 2HE
BT47 2HF
BT47 2HR
BT47 2NG
BT47 2HP
BT47 2JH
BT47 2HH
BT47 2HL
BT47 1DF
BT47 2HQ
BT47 6DF
BT47 5DE
BT47 5SA
BT47 2HG
BT47 2NB
BT47 2JD
BT47 6SB
BT47 2HN
BT47 2BX
BT47 2JE
BT47 2NF
BT47 6PA
BT47 2NE
BT47 6PB
BT47 2AH
BT47 2DF
BT47 2LL
BT47 2LP
BT47 2TR
BT47 1DE

Londonderry Brookhall NIBRH

The Londonderry Brookhall exchange has 8,122 domestic properties.
Some postcodes covered by this exange include;
BT48 7RZ
BT48 7SD
BT48 8DG
BT48 8DL
BT48 7SB
BT48 7SF
BT48 7RX
BT48 8DJ
BT48 7FD
BT48 7RY
BT48 7SA
BT48 7UB
BT48 8DQ
BT48 8QU
BT48 7TU
BT48 7RU
BT48 8DH
BT48 7UA
BT48 7RQ
BT48 8DN
BT48 8EA
BT48 8JB
BT48 7RT
BT48 8EY
BT48 8EU
BT48 7TZ
BT48 7WD
BT48 7YP
BT48 7YR
BT48 7YT
BT48 7YQ
BT48 7YJ
BT48 7YL
BT48 7YN
BT48 7UR
BT48 7WA
BT48 7WB
BT48 7UT
BT48 7UF
BT48 7TX
BT48 8EE
BT48 8QJ
BT48 7RH
BT48 8DS
BT48 8FT
BT48 8FX
BT48 8QB
BT48 8EB
BT48 7TT
BT48 7TY

Broadband Connectivity Type Definitions

Different telephone exchanges have different broadband connectivity depending on their geographic location, the consumers they serve (demand and composition of those consumers) and the competative landscape in that locale. As a result there is a mix of services and related performance which BT classify as follows;

Fixed Rate

There for three fixed rate lines; 512Kbps, 1Mbps and 2Mbps. As with IPStream 500, 1000 and 2000, these have an upstream capped at 288Kbps. Note that all of the other WBC products apart from these are strictly rate adaptive (like ADSL Max).

WBC Fixed Rate

Wholesale Broadband Connect (WBC) offers high-speed, high-performance broadband services.

ADSL Max

BT's original ADSL2+ wholesale product with an option of an upstream cap at 448Kbps or no cap at all. ADSL2+ can achieve up to 1Mbps upstream.

WBC ADSL 2+

ADSL2+ (also known as 21CN (21st Century Network) and WBC (Wholesale Broadband Connect) is a high speed broadband service which offers download speeds of up to 24Mbs and upload speeds of up to 1Mbs.

WBC ADSL 2+ Annex M

ADSL2+ Annex M offers up to 2.5Mbps upstream in the UK. This product is used by many businesses who could previously only find this level of upstream bandwidth with SDSL. Note that there is no option for a capped upstream with this product.

FTTC Range A (Clean)

FTTC Range A is a range where the circuits are deemed to be free of any copper line faults, and any local wiring issues (in a customer's premises). This range is often very wide for both upload and download, and does beg the question of why a copper line fault may exist without being fixed.

FTTC Range B (Impacted)

FTTC Range B is a range where circuits may have copper faults and/or internal wiring issues at a customer's site. The term impacted could be useful, as sometimes crosstalk is mentioned as something that impacts on line speeds, but there is no official word from BT on whether either Range A or Range B take into account the effects of crosstalk.

FTTP On Demand

Fiber to the home (FTTH), also called "fiber to the premises" (FTTP), is the installation and use of optical fiber from a central point directly to individual buildings such as residences, apartment buildings and businesses to provide unprecedented high-speed Internet access. FTTH dramatically increases the connection speeds available to computer users compared with technologies now used in most places.